python3: Remove future statements

Now that Nmstate is no longer supporting python2, the future statements
are removed.

Signed-off-by: Edward Haas <edwardh@redhat.com>

libnmstate/__init__.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-
 from . import error
 from . import schema
 

libnmstate/netinfo.py

@@ -16,7 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
 from operator import itemgetter
 
 from libnmstate import nm

libnmstate/nm/nmclient.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-
 from collections import deque
 from contextlib import contextmanager
 import logging

libnmstate/schema.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-
 import pkgutil
 import yaml
 

nmstatectl/nmstatectl.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-
 import argparse
 import errno
 import fnmatch

tests/ctl/compat.py

@@ -16,9 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-from __future__ import division
-
 try:
     from unittest import mock
 except ImportError:  # py2

tests/ctl/nmstatectl_test.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-
 import json
 import subprocess
 

tests/integration/ethernet_mtu_test.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-
-from __future__ import absolute_import
 import copy
 import time
 

tests/lib/compat.py

@@ -16,9 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-from __future__ import division
-
 try:
     from unittest import mock
 except ImportError:  # py2

tests/lib/schema_validation_test.py

@@ -16,8 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 #
-from __future__ import absolute_import
-
 import copy
 
 import pytest